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Contract OI history

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Dec 18, 2026 EXPIRATION

MRK $170.00 Call

MRK261218C00170000

Latest saved OI14,226Oct 23, 2026
Last change+320vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $170.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 14,2267,1130 2026-10-02: 13,589 OI2026-10-05: 13,589 OI2026-10-06: 13,598 OI2026-10-07: 13,599 OI2026-10-08: 13,599 OI2026-10-09: 13,693 OI2026-10-13: 13,710 OI2026-10-14: 13,710 OI2026-10-15: 13,712 OI2026-10-16: 13,758 OI2026-10-21: 13,906 OI2026-10-23: 14,226 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MRK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing14,226+320
Oct 21, 202613,906+148
Oct 16, 202613,758+46
Oct 15, 202613,712+2
Oct 14, 202613,7100
Oct 13, 202613,710+17
Oct 09, 202613,693+94
Oct 08, 202613,5990
Oct 07, 202613,599+1
Oct 06, 202613,598+9
Oct 05, 202613,5890
Oct 02, 202613,589No prior observation